Enantiomeric impacts of two amide chiral herbicides on Echinochloa crus-galli physiology and gene transcription

Xie, Jianhua; Chu, Ming; Zhao, Lu; Li, Kai; Liu, Weiping

doi:10.1016/j.scitotenv.2018.11.355

Cited by 11 publications

(14 citation statements)

References 57 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…16 In contrast, both Pre and Fen increased the chlorophyll content in E. crusgalli shoots, which may be due to a self-defense mechanism. 2 Stress conditions, including herbicide exposure, often lead to excessive production of reactive oxygen species (ROS), which can induce lipid peroxidation and oxidative damage. 28 To resist destruction by excessive ROS, the plant antioxidation system removes toxic molecules and restores cellular homeostasis.…”

Section: ■ Discussionmentioning

confidence: 99%

“…1 Echinochloa crusgalli (barnyard grass) is one of the most pernicious and troublesome weeds in rice fields and usually easily outcompetes rice for resources such as nutrients, light, water, and other resources, which causes a serious loss of rice yield. 1,2 Herbicides are most effective in recovering the rice yield loss caused by E. crusgalli damage and control E. crusgalli. However, since rice and barnyard grass are both grassy weeds, improving the selectivity of herbicides is a difficult problem.…”

Section: ■ Introductionmentioning

confidence: 99%

“…6 This detoxification system is defined as a xenome that can be divided into four phases and is composed of enzymes and transporter proteins, such as cytochrome P450 monooxygenase (P450s), glucosyltransferases (GTs), glutathione-S-transferase (GSTs), ATP-binding cassette (ABC) transporters, and so on. 3,7 Herbicides, as exogenous active substances, can cause biochemical and physiological damage to plants, both crops and weeds, 2,8 although some crops and weeds usually exhibit different phenotypes in response to safeners. 9,10 Since the herbicide degradation pathway induced by safeners in crops was significantly similar to the nontarget resistance pathway in weeds, 11 the mechanism of this selectivity of safeners has always been an interesting scientific problem that scientists want to elucidate.…”

Section: ■ Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Selective Action Mechanism of Fenclorim on Rice and Echinochloa crusgalli Is Associated with the Inducibility of Detoxifying Enzyme Activities and Antioxidative Defense

Huang

Ding

et al. 2021

J. Agric. Food Chem.

View full text Add to dashboard Cite

Fenclorim (Fen) is a safener developed for pretilachlor (Pre) that can protect rice from injury caused by Pre but does not lower the weed control effects of Pre. Unfortunately, the mechanism of selective action of Fen between rice and weeds, such as Echinochloa crusgalli (barnyard grass), has not been clarified. In this study, the differences in physiology, biochemistry, and gene transcription between rice and E. crusgalli response to Fen were compared. Comparing the protection effects of Fen on plant growth, it was found that Fen significantly protected rice from Pre, but did not protect E. crusgalli. The detection of malondialdehyde (MDA) content and activities of antioxidant enzymes showed that Pre induced significant oxidative damage both in rice and E. crusgalli; however, Fen reduced oxidative damage in rice but not in E. crusgalli. Transcriptome analysis revealed that Fen induced more genes related to herbicide metabolism in rice than in E. crusgalli, especially the glutathione-S-transferase (GST) genes, with six upregulated in rice but no genes upregulated in E. crusgalli. Accordingly, the GST activity analysis showed that Fen increased the activity of rice instead of E. crusgalli. These results indicate that the elevation of detoxifying enzyme activities and antioxidative defense may be the mechanism of selective action of Fen in rice but not in E. crusgalli.

show abstract

Section: ■ Discussionmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Selective Action Mechanism of Fenclorim on Rice and Echinochloa crusgalli Is Associated with the Inducibility of Detoxifying Enzyme Activities and Antioxidative Defense

Huang

Ding

et al. 2021

J. Agric. Food Chem.

View full text Add to dashboard Cite

show abstract

“…Chlorophyll content was extracted and measured according to our previous study (Xie et al, 2019). Calculations were completed from the absorption spectra using Arnon's method (Arnon et al, 1949) and expressed as mg g -1 dry weight.…”

Section: Analyses Of Chlorophyll In Ecrus-gallimentioning

confidence: 99%

Enantioselectivity and allelopathy both have effects on the inhibition of napropamide on Echinochloa crus-galli

Xie

Tang

Zhao

et al. 2019

Science of The Total Environment

Self Cite

View full text Add to dashboard Cite

Napropamide is a chiral acetamide herbicide commonly applied to control Echinochloa crus-galli in maize. The inhibition effect may be enantioselective for Echinochloa crus-galli and maize. It may also be affected by the potential allelopathy at field condition. To investigate this, we have examined the inhibition effect of napropamide on Echinochloa crus-galli mono-cultured or co-cultured with maize at field conditions. Our results on morphology, physiology, chlorophyll content and chlorophyll fluorescence suggest that R-napropamide has stronger inhibitory effect than Rac-napropamide and S-napropamide on Echinochloa crus-galli, while none of them affects maize. We found that both glutathione-S-transferase (GST ) genes and oxidative enzymes (superoxide dismutase, malondialdehyde) played roles in the inhibition. Accumulations of napropamide in Echinochloa crus-galli were more prominent in roots than in shoots, and no enantioselectivity was found in medium dissipation. We have observed relative allelopathy when applying napropamide to Echinochloa crus-galli co-cultured with maize.The results warrant further field studies on the enantioselectivity and allelopathy of herbicides.

show abstract

“…Echinochloa crus-galli can germinate under anaerobic conditions and demonstrates rapid germination, rapid ripening, and abundant production of seeds in rice fields (Mennan et al 2012). Therefore, E. crus-galli easily outcompetes rice in terms of nutrition, light, water, and other resources (Xie et al 2019a). Due to their strong competitive ability, E. crus-galli plants cause high levels of yield loss in rice crops (Panozzo et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Effect of fulvic acid on barnyardgrass (Echinochloa crus-galli) seedling growth under flooding conditions

et al. 2021

View full text Add to dashboard Cite

Barnyardgrass [Echinochloa crus-galli (L.) P. Beauv.] is a problematic weed that grows in rice (Oryza sativa L.) fields. Over-applying herbicide caused environmental pollution and the emergence of resistant weeds, and integrated weed management method can reduce the dependence on herbicides. The growth of E. crus-galli and rice seedlings could be significantly inhibited by high concentrations of fulvic acid (FA, C14H12O8) under flooding conditions (HF, 0.80 g/L) (p < 0.05). In contrast, the growth of seedlings could be promoted by the application of very low-concentration FA (LF, 0.02 g/L). The activities of glutathione S-transferase (GSTs) and antioxidant enzymes, including total superoxide dismutase (T-SOD), peroxidase (POD), and catalase (CAT) in E. crus-galli seedlings were enhanced by LF treatment; while the POD activity was decreased, the GSTs, T-SOD, and CAT activities were not significantly changed by HF treatment. The metabolomic and transcriptomic analyses showed that FA regulated E. crus-galli seedling growth by affecting the synthesis of indole derivatives and flavonoid compounds. Compared with the blank control (CK, 0 g/L), the levels of four indole derivatives were up-regulated under HF treatment, and the indole derivatives mentioned above were slightly down-regulated under LF treatment. The flavonoids, including naringenin, naringenin chalcone, eriodictyol, kaempferol, and epigallocatechin, were down-regulated under HF treatment, and the growth of E. crus-galli was restrained. In contrast, the metabolism and transcription of flavonoids were not significantly changed under LF treatment. Under the addition of 0.80 g/L FA, the growth of newly sprouted E. crus-galli was obviously inhibited, and the growth of rice was significantly promoted after eight days of rice planting (p < 0.05). The application of FA, therefore, might be a potential integrated weed management method to control the damage caused by E. crus-galli in paddy fields.

show abstract

Enantiomeric impacts of two amide chiral herbicides on Echinochloa crus-galli physiology and gene transcription

Cited by 11 publications

References 57 publications

Selective Action Mechanism of Fenclorim on Rice and Echinochloa crusgalli Is Associated with the Inducibility of Detoxifying Enzyme Activities and Antioxidative Defense

Selective Action Mechanism of Fenclorim on Rice and Echinochloa crusgalli Is Associated with the Inducibility of Detoxifying Enzyme Activities and Antioxidative Defense

Enantioselectivity and allelopathy both have effects on the inhibition of napropamide on Echinochloa crus-galli

Effect of fulvic acid on barnyardgrass (Echinochloa crus-galli) seedling growth under flooding conditions

Contact Info

Product

Resources

About